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Overview

Model # 77269102101 Store SKU # 1000739588

GRK's R4 self-countering screw has a new underhead with saw-blade like cutting teeth and six self-contained cutting pockets. Together they act similar to a circular saw blade, transporting the drill dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treaent. This design also further enhances the R4 versatility by allowing the fastener to be installed without countersinking into even the hardest woods. The R4 screw closes the hole off with precision, leaving no damaged fibers around the head. Applications include wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking and melamine.

  1. Recessed Star Drive: zero stripping, with 6 points of contact
  1. CEE Thread: enlarges hole to reduce splitting
  1. W-Cut: low torque, smoother drive
  1. Zip-Tip: no pre-drilling, faster penetration
  1. Cutting pockets: provide a clean hole, reduces splitting, and bore with precision
  1. ESR-3201 approved for structural application
  1. Case hardened steel: for high tensile, torque and shear strength
  1. Climatek Coating is AC257 code approved for use in treated lumber
  1. For interior/exterior use in wood, plastic, cement fibre board, particle board, sheet metal, wood decking and melamine

Specifications

Dimensions

Assembled Depth (in inches)
1.50
Assembled Height (in inches)
7.63
Assembled Weight (in lbs)
1
Assembled Width (in inches)
3.75
Packaged Depth (in inches)
1.5
Packaged Height (in inches)
7.63
Packaged Weight (In lbs)
1
Packaged Width (in inches)
3.75

Details

Collated
No
Colour Family
Gold
Country of Origin
TW-Taiwan
Drive Style
Star
Finish
Gold
Head Type
Flat
Interior/Exterior
Interior/Exterior
Length (in.)
2.5
Material
Steel
Material
Steel
Number of Pieces per Package
100
Package Quantity
100
Point Type
Type 17
Product Finish/Material
Yellow Zinc
Product Length
2-1/2 in.
Size
#9
Thread Style
Coarse

Warranty / Certifications

1-800-268-4000
#9 x 2-1/2-inch Star Drive R4 Multi-Purpose Framing Screws - 100pcsGRK #9 x 2-1/2-inch Star Drive R4 Multi-Purpose Framing Screws - 100pcsGRK's R4 self-countering screw has a new underhead with saw-blade like cutting teeth and six self-contained cutting pockets. Together they act similar to a circular saw blade, transporting the drill dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treaent. This design also further enhances the R4 versatility by allowing the fastener to be installed without countersinking into even the hardest woods. The R4 screw closes the hole off with precision, leaving no damaged fibers around the head. Applications include wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking and melamine.
GRK
1000739588
CAD21.982024-05-23
The Home Depot Canada
#9 x 2-1/2-inch Star Drive R4 Multi-Purpose Framing Screws - 100pcs is rated 5.0 out of 5 by 6.
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Rated 5 out of 5 by from Great construction screw. Great Screws, Drive easily and the Torx drive means there is no slipping. I uae other GRK torx drive screws as well and they all work exactly as advertised with the strength needed for strong joints.
Date published: 2021-06-06
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Are these suitable for outdoor use? E.g. a garden frame.

Asked by: Alexander
Yes absolutely! Best screw for outdoors on the market today, especially with the crappy wood available. No splitting, no rusting, period.
Answered by: Dave Dekker
Date published: 2022-03-25

Is the included torx bit designed to be used with impact drivers?

Asked by: joeblow
Did not use with an impact driver...used drill driver only.
Answered by: EBC1
Date published: 2022-10-12

Quantity?

Asked by: Pjfontes
100pc
Answered by: Paulin - Product Expert
Date published: 2020-04-26
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